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Optical microscope breaks Abbe’s limit

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Ashley N. Rice, [email protected]

Combining electronic excitation and optical detection has allowed an optical microscope to break Abbe’s diffraction limit. The new nanoscale imaging method could lead to enhanced biosensors by offering insight into how light and complex photonic materials interact. Researchers at FOM Institute AMOLF (Institute for Atomic and Molecular Physics) in Amsterdam, King’s College London and the Institute of Photonic Sciences (ICFO) in Barcelona broke Ernst Abbe’s specification for the resolution limit of a diffraction-limited microscope using a novel technique called...Read full article

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    Published: October 2012
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonic crystals
    Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner analogous to how semiconductors control the flow of electrons. Photonic crystals are often engineered to have periodic variations in their refractive index, leading to bandgaps that prevent certain wavelengths of light from propagating through the material. These bandgaps are similar in principle to electronic bandgaps in semiconductors. Here are some key points about...
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    Abbe’s lawAlbert PolmanAMOLFangle-dependent cathodoluminescence imaging spectroscopyBasic ScienceBiophotonicsBioScanbiosensorsbutterfliesConsumercrystal defect cavityDisplayselectronic excitationenergyEnglandEuropeFOM InstituteICFOImagingKing’s CollegeMicroscopymirrorsnanonanoscale resolutionNewsoptical detectionoptical microscopeOpticsphotonic crystalsphotonicsRiccardo SapienzaSensors & Detectorssilicon nitride membranesolar cellsSpainthe Netherlands

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